Improvement in pencil-sharpeners



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'ing surface, and held in place by means of a'spring.

ASAHELG. BATOHELDER, 0F LOWELL, MASSACHUSETTS.

Letters Patent No. 100,100,

dated November 8, 1870.

To all whom it may concern Be it known that I, AsAHEL G. BATGHELDER, of Lowell, in the county ofI Middlesex and State of Massachuscttsfhavc invented a new and valuable Improvementin Pencil-Sharpeners; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing making a part of this specification, and to the letters and iigu'res of' reference marked thereon.

Figure l of the drawing is a top View of my invention.

Figure 2 is a bott-0111 view of the same.

Figures 3,4, 5, 6, 7, 8, are details.A

My invention relates to means for sharpening pencils, and'consists in the construction of a conical guide, of' metal, with a removable blade, provided with a fil- The letter A of the drawing designates the conical guide. It is formed of metal, and serves to keep the end ofthe pencil in proper position with regard to the e. iffe of' the blade.

B designates the blade arranged to lie upon the ledge or shelf c, formed on the cone A, and kept in piace by means oftthe arms d l passing over it at each end, and'by the pressure of the spring s, fixed in the recess 01, underneath the blade.

A Hauch, e, is formed along the outer edge of the ledge c, and serves as a bearing for the back of the blade when in operation.

rlhe blade B consists of a thin plate of'` steel, bcveled on one side to form the cutting edge. VIts form is somewhat tapering, thefback and cutting edge grad ually approaching each other.

The upper or exposed vsurface of the blade is sel'- rated to form a filing surface, K, for the purpose of' iinishng the point of the pencil after it has been shaped by the edge of the blade.

The boss t on the under side of the ledge c, which is recessed to hold the spring s, ,serves to strengthen the ledge and to'give a purchase for the foreiinger'in operating the instrument.

'lhe handle m also serves to give width to the instrument, thereby facilitating its operation, as it can be held perfectly steady during the turning of thev confining arms d d, and friction-spuug s, the removable blade B, as spccificd.

In testimony that,L I claim the above, I have hereunto subscribed my name in the presence of two witnesses.

ASAHEL G. BATOHELDER. Ti tn esses:

WILLIAM GORDON, J AMES O. ABBOTT. 

